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Summary: Ctors | Methods | Protected Methods | Inherited Methods

# Camera

`public class Camera`
`extends Object` ``

java.lang.Object
↳ | android.graphics.Camera

A camera instance can be used to compute 3D transformations and generate a matrix that can be applied, for instance, on a `Canvas`.

## Summary

### Public constructors
`Camera()` Creates a new camera, with empty transformations.

### Public methods
`void` | `applyToCanvas(Canvas canvas)` Computes the matrix corresponding to the current transformation and applies it to the specified Canvas.
`float` | `dotWithNormal(float dx, float dy, float dz)`
`float` | `getLocationX()` Gets the x location of the camera.
`float` | `getLocationY()` Gets the y location of the camera.
`float` | `getLocationZ()` Gets the z location of the camera.
`void` | `getMatrix(Matrix matrix)` Computes the matrix corresponding to the current transformation and copies it to the supplied matrix object.
`void` | `restore()` Restores the saved state, if any.
`void` | `rotate(float x, float y, float z)` Applies a rotation transform around all three axis.
`void` | `rotateX(float deg)` Applies a rotation transform around the X axis.
`void` | `rotateY(float deg)` Applies a rotation transform around the Y axis.
`void` | `rotateZ(float deg)` Applies a rotation transform around the Z axis.
`void` | `save()` Saves the camera state.
`void` | `setLocation(float x, float y, float z)` Sets the location of the camera.
`void` | `translate(float x, float y, float z)` Applies a translation transform on all three axis.

### Protected methods
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

## Public constructors

### Camera

    public Camera ()

Creates a new camera, with empty transformations.

## Public methods

### applyToCanvas

    public void applyToCanvas (Canvas canvas)

Computes the matrix corresponding to the current transformation and applies it to the specified Canvas.

Parameters
`canvas` | `Canvas`: The Canvas to set the transform matrix onto

### dotWithNormal

    public float dotWithNormal (float dx,
                    float dy,
                    float dz)

Parameters
`dx` | `float`
`dy` | `float`
`dz` | `float`

Returns
`float` |

### getLocationX

    public float getLocationX ()

Gets the x location of the camera.

Returns
`float` |

See also:

- `setLocation(float, float, float)`

### getLocationY

    public float getLocationY ()

Gets the y location of the camera.

Returns
`float` |

See also:

- `setLocation(float, float, float)`

### getLocationZ

    public float getLocationZ ()

Gets the z location of the camera.

Returns
`float` |

See also:

- `setLocation(float, float, float)`

### getMatrix

    public void getMatrix (Matrix matrix)

Computes the matrix corresponding to the current transformation and copies it to the supplied matrix object.

Parameters
`matrix` | `Matrix`: The matrix to copy the current transforms into

### restore

    public void restore ()

Restores the saved state, if any.

See also:

- `restore()`

### rotate

    public void rotate (float x,
                    float y,
                    float z)

Applies a rotation transform around all three axis.

Parameters
`x` | `float`: The angle of rotation around the X axis, in degrees
`y` | `float`: The angle of rotation around the Y axis, in degrees
`z` | `float`: The angle of rotation around the Z axis, in degrees

See also:

- `rotateX(float)`
- `rotateY(float)`
- `rotateZ(float)`

### rotateX

    public void rotateX (float deg)

Applies a rotation transform around the X axis.

Parameters
`deg` | `float`: The angle of rotation around the X axis, in degrees

See also:

- `rotateY(float)`
- `rotateZ(float)`
- `rotate(float, float, float)`

### rotateY

    public void rotateY (float deg)

Applies a rotation transform around the Y axis.

Parameters
`deg` | `float`: The angle of rotation around the Y axis, in degrees

See also:

- `rotateX(float)`
- `rotateZ(float)`
- `rotate(float, float, float)`

### rotateZ

    public void rotateZ (float deg)

Applies a rotation transform around the Z axis.

Parameters
`deg` | `float`: The angle of rotation around the Z axis, in degrees

See also:

- `rotateX(float)`
- `rotateY(float)`
- `rotate(float, float, float)`

### save

    public void save ()

Saves the camera state. Each save should be balanced with a call to `restore()`.

See also:

- `save()`

### setLocation

    public void setLocation (float x,
                    float y,
                    float z)

Sets the location of the camera. The default location is set at 0, 0, -8.

Parameters
`x` | `float`: The x location of the camera
`y` | `float`: The y location of the camera
`z` | `float`: The z location of the camera

### translate

    public void translate (float x,
                    float y,
                    float z)

Applies a translation transform on all three axis.

Parameters
`x` | `float`: The distance to translate by on the X axis
`y` | `float`: The distance to translate by on the Y axis
`z` | `float`: The distance to translate by on the Z axis

## Protected methods

### finalize

    protected void finalize ()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. A subclass overrides the `finalize` method to dispose of system resources or to perform other cleanup.

The general contract of `finalize` is that it is invoked if and when the Java™ virtual machine has determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, except as a result of an action taken by the finalization of some other object or class which is ready to be finalized. The `finalize` method may take any action, including making this object available again to other threads; the usual purpose of `finalize`, however, is to perform cleanup actions before the object is irrevocably discarded. For example, the finalize method for an object that represents an input/output connection might perform explicit I/O transactions to break the connection before the object is permanently discarded.

The `finalize` method of class `Object` performs no special action; it simply returns normally. Subclasses of `Object` may override this definition.

The Java programming language does not guarantee which thread will invoke the `finalize` method for any given object. It is guaranteed, however, that the thread that invokes finalize will not be holding any user-visible synchronization locks when finalize is invoked. If an uncaught exception is thrown by the finalize method, the exception is ignored and finalization of that object terminates.

After the `finalize` method has been invoked for an object, no further action is taken until the Java virtual machine has again determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, including possible actions by other objects or classes which are ready to be finalized, at which point the object may be discarded.

The `finalize` method is never invoked more than once by a Java virtual machine for any given object.

Any exception thrown by the `finalize` method causes the finalization of this object to be halted, but is otherwise ignored.

Throws
`Throwable` |

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